Motor-stand for adding-machines.



(L E. W. GARDNER.

MOTOR STAND FOR ADDING MACHINES.

APPLICATION FILED NOV 1a, 1909.

Patented Dec. 9, 1913 3 SHEETS-SHEET 1.

wi/bmeooeo Qwvewtoz O. E. W. GARDNER. MOTOR STAND FOR ADDING MACHINES.

APPLICATION FILED NOV. 13.l909.

1,080,548. Patented Dec. 9, 191a.

. 3 S HEETSr-SHEET 2,

or I a; l M: I lnm J un/Mm was 0. E. W. GARENER.

MOTOR STAND FOR ADDING MAUHINES.

APPLIGATI'ON FILED NOV. 13, 1909.

1,080,548. Patentd De0.9,1913

3 SHBETSSHEET 3 wwmwea an W130 State of Michigan, have invented certain new? and useful Improvements in Motor- Stands for Adding-Machines, of which the following is a specification. V

M invention relates to adding machines and more particularlyto means for support ing suchfmachines and the motors and con nections for operating them.

One of its rincipal features consists in combining Wit-1 a simple stand adapted to support the adding machine, a removable platform or support carrying a motoryand operating connections, the parts being so constti eted that when the platform and machine are placedin" proper position they are inoperative relation wictfhmut. the necessity of making positive connection between the parts. i I v Another feature consists in. means: for 'ayoidfingx waste of power in driving the Inotori. i I I Otl ier features will be apparent from the following description taken in connection with theaccompanying drawings In tliedrawings, Figure l is a side elevation of the upper part of t-he'stand showing the platform and adding machine in position; jliigfQis a perspective view-0f the top of the stand. having the platform in positi onQFigQB is a plan View of the motor clutclilandi bracket; Fig dis a cross section on the line 4lFig. 3; and Fig. 5 is a detail perpective View of the the clutch mechanism.

,"l he tancl. is of any suitable form and 40 constru ion preferably of metal, and as shown includes the vertical tubular legs 1,

the cross bars 21, 22, and the side shelf 23.

' The adding machineisremovably supported bythecrossbar-s21, 22,the downwardly extending lugs 2 of the frame B of the adding machine resting in'soeket-s 24: on the cross bars. A platform A, preferably of cast metal also removably supported .by the pawl used in cross-harsfll, 225 IllgWil]. he observed that the cnd of this platform .which rests upon bar 21 extends almost the entire Width of the STATES i airti; ir

E. W. GARDNER, OF DETROIT, MICHIGAN, ASfiIGhIDR, 3333' lil -355MB (iS lItG-NW" w "TO-BURROUGHS ADDING MACHINE COMPANY, STE HE'IROIT, lflllICTtiIG-AN, it. We!

Specification of Letters Fiatent.

' pins 27 on the MOTOIiTt-STAND FOE ADDIli'G-MACHIIGJES.

Pat eniied 3131a E i-ii Application filed November 13, 1909. Serial No, 522736.

stand and thus has two pain support upon the cross has T of the platform is so sh-a single point oi support he a of bar 22, and it wilt be e use of three points of a firm and PIOPQ'K setting" i the stand withoa iachini; openings 26 in the platform aiiive 21 are merely for the pose. of the supporting lugs 2 of the at. to pass freely through the rest in the sachets en ti" platform. I in sockets in frame 1:- so as to insure pla platform in pro 3 for reasons her shifter exple form does not in any sen e machine, but is separate a I merit supported by the v to carry motor for ope: and the machine may he plat. stand either with or without the From. the platform .4 motor M of any sui capable of being d l source of power: trated in outline an eieetr'o driving shaft hi" whieh 1 tion so long as power is ti motor, and a driven siaftil with connecting the said. latter shaft with the adding maehine. ll "itions may be of any desired as shown the driven shaft has a crank-arm 4, to which is jointed one end of a chain 5, the opposite end of which is ccnnectd adjustably' with an arm ti, the hub o 11 recessedrso' as to he'- applied re end of the operatingrocl sl ing machine, the arm, and shatt havi w ing faces that insure the rocking shaft with the. arm; while g ie'rii'ii latter. to be applied and slipped Shaft without any positive eonneetie a so It is desirable, when the a is to be operated to accwnn'aila item, to rock the operai a sh: direction and then inthe other automatically arrest the n well known in connection with the operations of such machines, and 1 effect this by providing a clutch device of suitable character between the driving shaft and the 5 driven shaft of the motor, said clutch being carried by a bracket A secured to the support A. Such clutch connections may be of different forms and arrangements to secure the desired result, but as shown the clutch device consists of a pawl 8 pivoted to a dish fastupon the driven shaft and adapted to engage the teeth of a ratchet wheel 9 that is carried by a sprocket $29 which is loosely mounted upon the driven shaft 3 and connected by a chain 30 with a sprocket on the constantly rotating driving shaft, a

spring 10, connected to the pawl and to the carrying disk, tending to hold the pawl in engagement with the ratchet. To the bracket is pivoted anarm 12, the lower end of which is in position to engage a lug 13 on the pawl as the latter is carried toward the end of said arm. by the rotation of the disk, and the pawl will be thereby swung away from ti. ratchet against the tension of the spring 10, the crank 4 and arm 6 then being in the arrested position shown in the drawing. By shifting the arm 12 to carry its lower end from the lug 13 the pawl is released, when its spring 1.0 will carry it into engagement with the teeth of the ratchet, and the driven shaft willbe turned in the direction of its arrow by the driving shaft. to the arm '12 and bi -'acket A acts constantly to maintain the 3.131112 inthe position shown in the drawings, is in the path of rotation of the lug 13' and unless said arm is pre vented from. returning to such normal position. during a revolution of the driven shaft it will be seenv that when a complete rotation of the driven shaft is effected the lug 13 will. be brought against the end of the arm l2, and the pawl will be swung away from 1 the ratchet wheel, and the further rotation of the driven shaft will thus cease after effecting a complete rocking movement of the operating shaft of the machine. I have illustrated and described this form of clutch and connection with-the motor merely as one means of carrying out my 'invention. Any other suitable means for efiecting the same result may be employed.

It is extremely ClGSlIZLl'JlO to avoid the necossity of making any positive connections between the parts ot tne adding machine an d the control devices of the motor as such connections w'ill result in loss of time, and cannot frequently be made by those who are in cliarge'ol; such'macl'nncs, and almost 111 support A. and

A spring 18 having its ends attached variably involve detachable parts which laced, in a defined operative connections, and then there will be parts in position to effect the'klesired control of the motor from the machine without the necessity of making any connections or adjustments. Such parts may be differently arranged and constructed, but as 'shown there is a contact device in the form of a stud G which is upon a shifting blade 15, connected at one end with the upper end of the arm 12, and thiscontact device or stud is in such position as to coact with a contact device D of the machine so that upon moving the latter contact device the contact device 0 and blade 15 will be shifted and shift the arm 12 to carry it from the path of the lug 13 on the clutch pawl.

As shown the contact device I) is a bellcrank lever swung in one direction by a spring lfia'nd in the other by a pawl '17, pivoted to the starting arm 1*] of the machine, so that when'the starting arm is deprcssed the pawl is swung, the contact C and blade 15 arcshifted to shift the arm 12, and the machine is started, the spring 16 swinging thecontact device D away from the contact device C, when pressure on the starting arm is released, and the spring 18,

connected with the arm 12, restoring the latter to normal position.

' It is of course undesirable to transmit the power constantly to the motor, and to avoid the Waste ofpower that would result from running the motor when there is no machine in position to be operated, or when it is not in operation, the energizing current may, as shown, be conducted to the motor bysuitable cables or conductors leading to and from a switch box'X, containing a suitable switch, controlled by a push button w, to break the circuitwhenever desired. I however provide means whereby the switch or other control device may be automatically shifted so as to arrest the transmission of power to the motor whenever the devices I), C are not in contact. To this end the blade 15 may be connected to operate the switch 20, which, as shown, projects through the top of the switch box'X into position to be engaged by said blade and is carricd to a position to breakthe circuit by the action of the spring 18 when the parts D, C are not in contact, but is shifted in position to vmake the circuit as soon as the contact device D has moved the device G and its connections to a position to ease the clutch pawl 8.

Anysuitable form of switch mechanism may be employed. In the conventional illustration ofsuch devices in Fig. 1, the switch 20 is shown as 'a' simple lever, suitably fulcrumed on a bracket 20 by a spring 20*. Said switch lever is connected bye. conductor 20 with one polc' of the battery, the other pole of. which is conwithin the box X and normally held in the position shown peaches nected, as by a conductor M with the m0- tor. The latter is, by a conductor M connected with a second contact or switch xne1nher in the box contact comprises a spring arom -50 of com ducting material to which thecondoctor M is electrically connected and a member 50 mounted in a bracket and having its lower end. normall making electrical contact with the, member 50, while its upper end projects into the path of the switch lever 20, The stem of the push-button so extends through the bracket carrying the member 50 of the second contact and rests upon the springniember 50 so that by do pressing said button the members 50, 50 can be separated to break-the circuit atany time, as above described.

By connecting the crank shaft of the motor with the arm which is connected to the oneratin shaft of the machine b means of a flexible connection, as the chain 5, a positive movement is imparted to the said arm from the motor when the arm is swung in one direction, that is the direction corresponding to the forward stroke of the chine where the motion should be posibut the connection 6 can be relaxed on the return l'llOVQlIlQll'tso that if the parts of the machine are not carried on their return iovement as rapidly as the shaft on the motor rotates the conn ction 5 can sla'cken with out interfering in any way with the slower action of the machine.

Fron'z the above description it will be obsc ved that a special feature of my invention resides 1n making the parts as detach able units which may be brought together in operative relations with great ease and accuracy. There are four such units, the adding; n'lacliine', the ,)latfo1'm, the motor. and the stand. The motor must be positively connected to the platform by screws l5? engaging logs on the motor casing, and the motor must be positively connected to the machine by securing chain 5 to operate shaft 7, but all other operative connections are made by simply placing: the-baits in position. The centering pins 97 insure placing platform A in such position. on the bars 521, 22 that the operating connections will be in proper relations and those pins will prevent accidental movement of the platform out of position. By this means the stand frame is equally adapted,

As shown, this second machine used with the frame alone. Ifany change in this motor is required it may be readily unbolted from the platform and replaced, the arm 6 being disconnected from its rock-shaft; this also permitting the instant removal of the machine from ports. lVithout limiting myself to the tion and arrangement shown, I claim: v

l. The combination with an adding machine, including an operating shaft, of astand its supadapted to support said machine, a motor supported by the stand and having driving devices and a rotatable driven shaft; means for connecting said driven shaft operativcly with the operating shaft of the adding machine, a shift-able device cont-rolling connection of the driven shaft of the motor the actuating member of an adding machine 1 supported by the stand, and means for conecting and disconnecting said driving and drlven members, includlng a contact device arranged to coact with and be slnfted by 'a contact device on the adding machine mounted on the stand.

3, The combination of a stand adapted to support a detacl'iable adding machine, a mo tor having aro-tatable driving shaft, a driven shaft, means for connecting the lattershaft with the actuating member of an addlng machine supported by the stamh-alnd means for connecting said shaftsand automatically disconnecting them at the termination of a rotation of the driven shaft including a shiftable member andan'operating contact device arrangedto coact with and be new ated by a contact devlce on the adding machine mounted on the stand. I

4. The combination of a stand mum support for a detachable addingmacho a motor supported by the stand, a control device controlling the transmission of power to the motor, a shiftable contact device con nected to operate the control device and in position to coact with a contact device on the machine to be shifted by the moven'lont of the latter device.

5. The combination of a stand having a support for a detachable adding machine, a motor supported by the stand, a control .device controlling the transmission of power to the motor, ashiftablecontact device connected to operate the control device and in position to coact with a. contact device' on the machine to be shifted'by the movement of the latter device, means for operating the machine from the motor, and devices con- 4 weenie nected with theshiftable contact device whereby to put said last named means into and out of connection with the motor by the adjustment of said shiftable Contact device.

6. The combination of a stand having a. support for a detachable adding machine, and supporting a motor having a driving shaft, a driven shaft, a clutch for connecting said shafts, means for engaging the parts of the clutch and for disengaging them automatically at the completion of each rotation of the driven shaft, devices for connecting the driven shaft operatively with the actuat-- ing member of an. adding machine supported by the stand, and a shittabie contact device and connections whereby to control the operationsof the clutch, said contact device being in position to coact with a contact device of an adding machine mounted on the stand to be shifted therefrom. I

i. The combination of a stand having a support for a detachable adding machine, and supporting; a motor having a driving shaft and a driven shaft and an intermediate clutcln means for engaging the parts of the clutch and for disengaging them auto-matieally at thecompletion of each rotation of the driven shaft, devices for connecting the driven shaft operativeiy with the machine, a shiftable contact device and connections whereby to control the operations of the clutch, said contact device in position to coact with a contact device of the machine to be shifted therefrom, and a coiitrol device controlling, the transmission of power to the motor, said control device connected to be shifted on the movement of the said shittable contact device.

the completion of each rotation, means forconnectingithe driven shait operatively with the adding nun-lime, a switch controlling the transmission ot current to the motor, and

means for shi ttine the switch and the clutch,.

said-means provided with a contact in position to be shi'i'tcd by a Utlfiltltft} devico'on the machine. I H. The combination with the motor of an adding machine and with'n'ieans for trans- .niitting power thereto andvwith a controlling device thereton'of a driving shaft, a driven shalt, means for connecting, and disconnertmg' the two-shafts, and means for automatically shifting the latter means to disconnect; the driven shaft from the driver at, the nd of em otation of the driven shaft:

10. A stand for an adding machine pro vided .with a support; carrying a motor,

stopping and starting means contact device, the said so ort; one I vided with means for defining and ilnimi the position of the machine on said stand. with reference to the Contact device.

11. A stand for adding mac ines consist ing of a frame adapted to sine ort r i. addi. machine thereon, and a plats i detach from the frame, and means for connecting motor theretc 1%. The combination of a provid r with bearings for an adding i'iachit e, platform, and means for supporting it. tachably on the frame independent o machine, and means for connecting to said platform.

13. The combination of frame with bearings for an adding n platform and meansfor snppo taehably on the frame indepen machine. and a motor connected eetacnaiaiy' to said platform.

i The combination of a frame pr with oearin-gs for an adding platform and means for supporting tachahly on the frame independen, machine, a motor,-and means forhan i. from the platform.

'- 15. The combination vim a stand ananted to support an adding machine, of r able platform carrying a moto to rest onsaid stand ba e v 5. chine.

16. The combination with adding machine having dep ing lugs adapted to rest on. an removable platform carrying ed t'o'rest. on said stand below s machine 7 V 17. The combination. with a stand, of adding machine having de iending; support T i v, 'imt It 'ing lugs adapted to rest on Sitit'r stand, and

a removable platform carryinga motor adapted to rest on said stand heiow said adding machine, the said piat'torni being provided with openings through which said lugs pass.

18. The combination with a stand, of an adding machine having dependir supporting lugs adapted to rest on said hand, a removable platform carrying a motor adapted to rest freely on said stand. below said add-- ing machine, and means on said machine and proper position-with relation to the no chine. I

19. The-commutation with a stand, or an. adding machine resting thereon, and a piste form carrying a motor resting treaty i i stand below said adding machine, the platform and machine being promo interengaging elements to cent-er the plat form.

platform for maintaining, the platform in cbine, of a platform carrying a motor and pins qn said plattorm adapted to engage said adnpted to rest on said cross bars at three 11180111116. I I I 10 points below said adding machine. In test1m0ny whereof I affix my signature 21.. The combination with a stand adaptin presence of two Witnesses.

ed to' support an adding machine of a plat- A CLYDE E. W. GARDNER. form carryin a motor and switch adapted Witnesses:

to rest on' and stand below-and indep'end- ALVAN MAGAULEY,

ently of said adding machine, and centering R. S. MIELERT. 

